Chevrolet 1973 Monte Carlo Owner's Manual page 55

drain back in the crankcase. To
check the level, remove the oil
gauge rod (dip stick), wipe it
clean and reinsert it firmly for an
accurate reading. The oil gauge
rod is marked "FULL" and
"ADD." The oil level should be
maintained in the safety margin,
neither going above the "FULL"
line nor below the "ADD" line.
Reseat the gauge firmly after tak-
ing the reading.
Supplemental Engine Oil
Additives
The regular use of supplemental
additives is specifically not recom-
mended and will increase operat-
ing costs. However, supplemental
additives are available that can
effectively and economically solve
certain specific problems without
causing other difficulties. For
example, if higher detergency is
required to reduce varnish and
sludge deposits resulting from some
unusual operational difficulty, a
thoroughly tested and approved
additive - "Super Engine Oil Sup-
plement" - is available at your
Chevrolet dealer. In the event of
an operational problem, consult
your dealer for advice before using
supplemental additives.
Drive Belts
Every 6,000 miles or 4 months
-inspect drive belts for wear,
fraying, cracking, and tension.
Belts which are in poor condition
should be replaced immediately.
Check tension by applying
moderate thumb pressure midway
between pulleys. If the center-to-
center distance · between pulleys is
13 to 16 inches, the belt should
deflect
1/2
inch. If the center-to-
center distance is 7 to 10 inches,
the belt should deflect ~ inch.
Loose belts should be retensioned
to give the correct deflection.
It is recommended that belts be
53
replaced every 24 months or 24,000
miles, whichever occurs first.
Flame Arrester - Every 12,000
miles-Clean the arrester (located
in the base of the air cleaner) with
kerose:le or a suitable solvent. Dry
with compressed air.
Air Cleaner
Rear Axle
Standard-Every 4 months or
6,000 miles, whichever occurs first,
check lubricant level and add lubri-
cant, if necessary, to fill to level of
filler plug hole. Use SAE 80 or
SAE 90 GL-5 Gear Lubricant.
(For vehicles normally operated in
Canada use SAE 80 GL-5 Gear
Lubricant.)
Positraction - Drain and refill
after 12,000 miles. Then maintain